They say that the human hands are the most difficult subjects to illustrate - but it's just as tough painting directly on them.
Instead of simply drawing a pair of hands, these images by photographer Ray Massey use palms, fingers, fingernails and fists as the canvas for some incredible body art.
Massey teamed up with body paint experts Annie Miller and Annie Ralli to transform some patient models' hands into creatively deceiving objects, architecture and scenes for a recent ad campaign.
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